General Schmidt received the good news that the 5th Marine Division had snuffed out the final enemy cave in The Gorge on the evening of D+34. But even as the corps commander prepared his announcement declaring the end of organized resistance on Iwo Jima, a very well-organized enemy force emerged from northern caves and infiltrated down the length of the island. This final spasm of Japanese opposition still reflected the influence of Kuribayashi’s tactical discipline. The 300-man force took all night to move into position around the island’s now vulnerable rear base area, the tents occupied by freshly arrived Army pilots of VII Fighter Command, adjacent to Airfield No. 1. The counterattacking force achieved total surprise, falling on the sleeping pilots out of the darkness with swords, grenades, and automatic weapons. The fighting was as vicious and bloody as any that occurred in Iwo Jima’s many arenas. The surviving pilots and members of the 5th Pioneer Battalion improvised a skirmish line and launched a counterattack of their own. Seabees and elements of the redeploying 28th Marines joined the fray. There were few suicides among the Japanese; most died in place, grateful to strike one final blow for the Emperor. Sunrise revealed the awful carnage: 300 dead Japanese; more than 100 slain pilots, Seabees, and pioneers; and another 200 American wounded. It was a grotesque closing chapter to five continuous weeks of savagery. The 5th Marine Division and the 21st Marines wasted no time in backloading on board amphibious ships. The 9th Marines, last of the VAC maneuver units to land, became the last to leave, conducting two more weeks of ambushes and combat patrols. The 147th Infantry inherited more of the same. In the first two months after the Marines left, the Army troops killed 1,602 Japanese and captured 867 more. [Sidebar (page 37): The Marines’ Zippo Tanks To the Marines on the ground, the Sherman M4A3 medium tank equipped with the Navy Mark I flame thrower seemed to be the most valuable weapon employed in the battle of Iwo Jima. The Marines had come a long way in the tactical use of fire in the 15 months since Tarawa, when only a handful of backpack flame throwers were available to combat the island’s hundreds of fortifications. While the landing force still relied on portable flame throwers, most Marines could see the value of marrying the technology with armored vehicles for use against the toughest targets. In the Marianas, the Marines modified M3A1 light tanks with the Canadian Ronson flame system to good effect; the problems came from the vulnerability of the small vehicles. At Peleliu, the 1st Marine Division mounted the improvised Mark I system on a thin-skinned LVT-4; again, vehicle vulnerability limited the system’s effectiveness. The obvious solution seemed to be to mount the flame thrower in a medium tank.